Improvement in injectors



W. A. ASHCRAFT INJECTOR.

No. 192,213. Patented June 19,1877

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N FEI'ERS. PHOTO'LITHDGRAPHER, WASH! 'JNITED STATES PATENT OFFICE.

WILLIAM A. ASHGRAFT, OF DES MOINES, IOWA.

IMPROVEMENT m INJECTOR Sa Specification forming part of Letters Patent No. 192,213, dated June 19, 1877; application filed March 14, 1876.

To all whom it may concern: f

Be it known that I, WILLIAM A. ASHORAFT, of Des Moines, in the county of Polk and State of Iowa, have invented an Improved Steam-V Pump, of which the followingis a specification:

versible combining-tube.

a is a conical tube. b is a disk or flange at the base of the tube. c is a shoulder and enlargement ot' the disk or flange b. cl is a vertical vent or perforation through the disk I) c at the base of the conical tube a, to allow water to drain off from above the flange b, and thereby prevent it from freezing when the pump is not in operation and the temperature is cold. a is a counterpart of the-top tube a, on the under side of the disk D c.

The complete valve is one solid casting, having a continuous bore o'r perforation through the conical tubes a a, and also a vent or perforation, d, through thedisk b c.

The upper and under sides of the combiningtube are exactly alike in all respects, so that when one side gets worn out the combiningtube can be reversed, and used until both sides are too much worn to operate.

Fig. 2 is a perspective view of a half-section of aT-form tube-joint, carrying a steam-jet, and illustrates the manner of applying and operating my reversible and adjustable combining-tube.

A represents the T-joint, designed to be connected with a well-tube, and the water that is to be lifted. B is the branch, connected with the steam-chamber of an engine. 0 is a steam-jet, fixed in the branch 13.

D represents the conducting-tube, connected with the top branch of the T-joint A. a b cd is my reversible combining-tube, resting on a shoulder, 'g, in the top branch of the T-form joint.

la is an annular plate or washer, conforming in size and shape with the flange b of the combilling-tube and the shoulder g in the upper branch of the T-form joint A. This plate k is placed under the flange of the combiningtube to raise the position of the combining tube relative to the fixed nozzlem of the steamjet 0, and to thereby increase the vacuum and the volume of the column of water elevated and discharged.

By removing the plate 70 the combining-tube is .lowered and the vacuum-chamber diminished, and the volume of water diminished and discharged with greater force. When the plate is removed from belowthe combiningtube it must be placed on the top side of the combining-tube to hold the combiningtube secure.

By means of the washer 7. or a' graduated series of such washers, the combining-tube can be readily adjusted to elevate and discharge a large volume of water, or to force and throw a diminished volume and column, jet, orspray.

I claim as my invent1on- 1. In a steam-injector pump, the reversible combining-tube a a b c d, substantially as and for the purposes shown and described.

2. The combining-tube a a" b c d, in combination with the washer is and the fixed steam-nozzle m, substantially as and for the purposes specified.

WILLIAM A. ASHORAFI.

Witnesses:

JNo. H. DRABELLE, R. J. PIERsON. 

